SME
Grade 6 Science · Earth & Space Science
Plate tectonics
See what happens where plates pull apart, collide or slide past each other, and what moves them.
Explore
Two plates pull apart.
Magma rises and cools into new seafloor.
The rock is older the farther it is from the ridge, the same on both sides.
Assumptions
•
Earth’s outer shell is broken into large pieces called plates, which move a few centimeters a year.
•
Most earthquakes and volcanoes happen where plates meet.
Topic check
See what you know: 5 questions on this topic
New questions each time. Pass to mark it complete.